Registration Dossier
Registration Dossier
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EC number: 229-912-9 | CAS number: 6834-92-0
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
LC50 (96 h): 210 mg/L (Brachydanio rerio)
LC0 (96 h): 180 mg/L (Brachydanio rerio)
LC100 (96 h): 250 mg/L (Brachydanio rerio)
Key value for chemical safety assessment
Additional information
A semi-static non-GLP study with Brachydanio rerio by Richterich and Muehlberg (2001), similar to OECD guideline 203, was performed for a sodium metasilicate (anhydrous). The 96 h LC50 was determined to be 210 mg active matter/L. The 96 h LC0 and LC100 were 180 and 250 mg active matter/L, respectively. The pH varied depending on the test substance concentration from 9.1 to 9.8.
In another non-GLP study (UK Dept. Envir. 1991, Wallen et al. 1957) the toxicity of sodium metasilicate to Gambusia affinis was examined. The 96 h LC50 was determined to be 2320 mg/L (pH 8.9 - 10.1).
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